Ringlet (mining)

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The ring is an old measure of space that was mainly used in Prussia and Hanover . It was mainly used in mining and corresponded to a volume of 4400 cubic inches (about 72 cubic decimeters ). The ringlet was set to this size in 1796 in order to standardize the dimensions customary in hard coal mining . Converted to the density of hard coal results in a maximum mass of 0.105 tons per ring.

In Osnabrück a ringlet had 2 Hanover bushels (57.406 cubic decimeters).

In Bremen there was 1 ringlet = 1 pile = 8 peat sods. The amount of ringlet is derived from the layering of the peat sod for drying. The made-up word "put peat in rings" was invented, which actually described the wall-like stacking, and it was transferred to a measure.

Weight differences

Due to the different types of coal and the various specific weights associated with them, as well as the different lump size of the coal, an exact conversion into modern weights is not possible. The information is therefore subject to certain fluctuations. In some mining areas , official conversion factors have been set. According to the revised Cleve-Märkische Bergordnung of 1766 , a ring corresponded to a quarter of a Malter or a Berlin bushel. In the Brandenburg mining authority district, a ring was equivalent to 1.4286 bushels , that is 0.35712 Prussian tons . Around 1781 a ring in the bustard area was equivalent to 74.60 kilograms. In the county of Mark in 1786 a ring was equivalent to 75.63 kilograms, this increased to 80 kilograms in 1793.

In Langenbrahm , a ring weighed 73.70 kilograms. In Hülsiepen around 1796 a ringlet weighed 92 kilograms. In Pörtingsiepen in 1800 the ringlet was equivalent to 100 kilograms, in 1815 it was 105 kilograms. The Prussian normal ring corresponded to a weight of 79 kilograms in 1802. A weight of 75 kilograms can be used as an average value for the ringlet in the mining authority districts in which there was no official regulation. On January 1, 1818, the ringlet was replaced by the bushel. In 1855 the dimensions were adjusted. The Essen-Werden mining authority area was an exception, where its own calculations were made until around 1870. According to the official conversion of the Oberbergamt from 1802, one ring corresponded to one gear (90 kilograms). But here, too, there were fluctuations in the dimensions of the room, as there was no uniform size specification for a long time. For example, a gear should weigh between 70 and 100 kilograms.

The Alte-Haase-Ringel (named after the Alte Haase colliery ) was a dog (wagon) in a conical shape with the dimensions:

  • Top length 24 ¾ inches; Length below 23 inches; Width at top 14 inches; Width at the bottom 11 ½ inches

This Alte-Haase-Ringel resembled the Mülheimer Berggang and weighed:

  • 1 ring = 0.137 tons
  • 1 ring (otherwise in the region) = 1 bushel (Berliner) = 65 kilograms
  • 1 Mülheimer Berggang (Mülheimer Karren) = 137 kilograms (lump coal)
  • 1 Mülheimer Berggang = 97.5 kilograms (Grus)
  • 1 Ruhr passage = 14673 kilograms of lump coal in the coal deficits

Individual evidence

  1. ↑ Peter Kurzweil: The Vieweg unit lexicon. Friedrich Vieweg & Sohn Verlagsgesellschaft mbH, Wiesbaden, ISBN 978-3-322-92921-1 .
  2. ↑ Christian Noback , Friedrich Noback : Complete paperback of the coin, measure and weight ratios etc. of all countries and trading places. First division: Aachen - Pesth. F. А. Brockhaus, Leipzig 1851, p. 782.
  3. ↑ Stephan Behlen : Real and verbal lexicon of forest and hunting with their auxiliary sciences. Volume 2: F. Johann David Sauerländer, Frankfurt am Main 1841, p. 581.
  4. ^ Hermann Brassert (ed.): Mountain orders of the Prussian lands. FC Eisen, Cologne 1858, p. 887.
  5. ↑ Bushel. In: Pierer's Universal Lexicon. P. 112 , archived from the original ; retrieved on August 3, 2010 : " ... der Preußische (Berliner) S., which earlier 27411/2, 2752, 2758.95 u. 2767 Par. Cubikz. contained, according to the Edict of 1816, however, 2770.75 Par. Cubikz. (3072 Prussian cubic z. - 54.96 liters) contains ... "
  6. ↑ Joachim Huske : The coal mine in the Ruhr area. Data and facts from the beginning to 2005 (= publications from the German Mining Museum Bochum 144). 3rd revised and expanded edition. Self-published by the German Mining Museum, Bochum 2006, ISBN 3-937203-24-9 .
  7. ↑ Kurt Pfläging: The cradle of Ruhr coal mining. Glückauf Verlag, 1979, ISBN 978-3-77390-235-1 .
  8. ↑ Gustav Adolf Wüstenfeld: In the footsteps of coal mining: Pictures and documents on the history of Ruhr mining in the 18th and 19th centuries. Volume 3, Gustav Adolf Wüstenfeld Verlag, Wetter-Wengern 1985, ISBN 978-3-92201-404-1 , p. 147.